Improvement in rotary engines



' To all whom #mag/:concern f UNITEDSTATEsI PATENT OFFICE.

JoHN E. PETERS, oE DOVER, NEW JERSEY.

Specification forming part of Letters Patent No. .17 6,547, dated April 25, 1876 application led February 14, 1876.

- E@ it `known nia-t1, JOHN E. PETERS, of

I Dover, in the county. not' Morris and L'State of V `ew J'ersey-,Qhaye-invented a new; and Im- 4proved RotaryEnging-of whichthe following isa specification: V

I am aware thatV grooved anges `attached p. to the ends-offthe hub and extending out as i'ar as the range' ofthe pistons (which `.are attached lto steam-tight slidesjfmovingzinthe grooves by cams) have been used'iin this class ot' engines. I ami also awarethatplain iianges ot' about the saine Adiameter as the hub land attached to it havebeen used in combination with stationary packingrings pressing -011 the edges ot' the angesand against the ends ot' the-pistons;A but my improvement consists ot' plain.ijangesattached to the hub and extending out as far as the plstons move, `with stationary packing-rings pressing on the edges ot' the ianges aiulagaiiist the.casethus inaterally sinipliiying the4 construction ot' the first-named 'arrungeineiid preventing.- the radial'end wear of ,the pistons by the packingrings, as arranged fin; the second and preventing thc loss of steamincident to both,through the necessary V'clearance between the inside edges ot' thecirculnterence 'ot'the anges and fthe case'. V

My "invention-"also consists-i o't'- compound pistons, consistingot'V two or inoreflplates ineach groove i11`tl1e-lil`1b,[the ends and,4 tops ot' which may beso formed as to present serrated edges, and` constitute Wi th condensed steam what is called waterpackingfto jprevent partly an end elevation, with the 'end plate removed, takenon linea:` at', Fig. 2 and Fig. 2 is a horizontal section on liney y of, Eig. 1.

Similar letters of reference indicate corresponding parts. l j' y A is the hub; B, the plain anges,.between which the pistons work; C, the packing-rings atthe outer edge of the anges', pressing en steam-pressing on the follower, to avoid the use ot' stuffing-boxes. L 'represents theexhausts, and N the live-steam ports.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. The combination, in a rotary engine, of the stationary packing-rin gs C, and springs D and E with the casing, plain flanges B, hub A, and pistons H, said ilanges extending out to the inner periphery ot' the casing, or as far as the pistons move, as and for'the purpose set forth. f,

2. The compound pistons, consisting of two or more plates in each groove in the hub, the ends and tops ot' which may b'c formed to present serrated edges, and constitute with condensed steam what is called rater-"packing,7v

substantially as specied.

JoHN rE'TEEs.

Witnesses:

, A. P. THAYER,

JAMES H. HUNTER. 

